<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>login</title>
</head>
<body>
    <div>
        <h1>login</h1>
        <form action="/login" method="post">
            <span>
                <p>username</p><input name="username" type="text">
            </span>
            <span>
                <p>password</p><input name="password" type="password">
            </span>
            <span>
                <button>login</button>
            </span>
        </form>
    </div>
</body>
</html>